NO990612L - Method and apparatus for detecting fiber optic interferometric sensors in multi-channel applications - Google Patents
Method and apparatus for detecting fiber optic interferometric sensors in multi-channel applicationsInfo
- Publication number
- NO990612L NO990612L NO990612A NO990612A NO990612L NO 990612 L NO990612 L NO 990612L NO 990612 A NO990612 A NO 990612A NO 990612 A NO990612 A NO 990612A NO 990612 L NO990612 L NO 990612L
- Authority
- NO
- Norway
- Prior art keywords
- fiber optic
- optic interferometric
- channel applications
- interferometric sensors
- detecting fiber
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B9/00—Measuring instruments characterised by the use of optical techniques
- G01B9/02—Interferometers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
- G01H9/004—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/021,014 US5959294A (en) | 1998-02-10 | 1998-02-10 | Method and apparatus for interrogation of fiber optic interferometric sensors in multi-channel applications |
Publications (2)
Publication Number | Publication Date |
---|---|
NO990612D0 NO990612D0 (en) | 1999-02-09 |
NO990612L true NO990612L (en) | 1999-08-11 |
Family
ID=21801845
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO990612A NO990612L (en) | 1998-02-10 | 1999-02-09 | Method and apparatus for detecting fiber optic interferometric sensors in multi-channel applications |
Country Status (9)
Country | Link |
---|---|
US (1) | US5959294A (en) |
EP (1) | EP0936453B1 (en) |
JP (1) | JP4091196B2 (en) |
KR (1) | KR19990072550A (en) |
AU (1) | AU746168B2 (en) |
CA (1) | CA2259548A1 (en) |
DE (1) | DE69916677T2 (en) |
IL (1) | IL128453A (en) |
NO (1) | NO990612L (en) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6134281A (en) * | 1998-02-10 | 2000-10-17 | Litton Systems, Inc. | Method and apparatus for calibration of a signal processing system utilizing digital down converters |
CA2320394A1 (en) * | 1999-10-29 | 2001-04-29 | Litton Systems, Inc. | Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors |
US6346985B1 (en) * | 1999-10-29 | 2002-02-12 | Litton Systems, Inc. | Optical method for the transduction of remote arrays of electromechanical sensors |
CA2320453A1 (en) * | 1999-10-29 | 2001-04-29 | Litton Systems, Inc. | Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors |
US6314811B1 (en) | 2000-01-24 | 2001-11-13 | Litton Systems Inc. | Acoustic sensor module design and fabrication process |
KR100491451B1 (en) * | 2000-07-24 | 2005-05-25 | 리톤 시스템즈, 인코포레이티드 | Multichannel interferometer with phase generated carrier demodulation and quadrature error correction |
US6822744B1 (en) * | 2001-05-25 | 2004-11-23 | The Board Of Governors For Higher Education, State Of Rhode Island And Providence Plantations | Modular interferometric imaging method apparatus and system |
US7346313B2 (en) | 2002-03-04 | 2008-03-18 | Cafarella John H | Calibration of I-Q balance in transceivers |
US6778720B1 (en) | 2002-04-02 | 2004-08-17 | Optiphase, Inc. | Dual slope fiber optic array interrogator |
US7474891B2 (en) | 2005-03-31 | 2009-01-06 | Adc Telecommunications, Inc. | Dynamic digital up and down converters |
US7640019B2 (en) | 2005-03-31 | 2009-12-29 | Adc Telecommunications, Inc. | Dynamic reallocation of bandwidth and modulation protocols |
US7424307B2 (en) | 2005-03-31 | 2008-09-09 | Adc Telecommunications, Inc. | Loss of page synchronization |
US7423988B2 (en) | 2005-03-31 | 2008-09-09 | Adc Telecommunications, Inc. | Dynamic reconfiguration of resources through page headers |
WO2008003224A1 (en) * | 2006-06-30 | 2008-01-10 | China National Petroleum Corporation | An optical fiber control system for safety early-warning |
EP2131159B1 (en) | 2008-06-04 | 2016-04-13 | Sercel | Fiber optic Interferometric sensor array with increased multiplexing density |
CN104833721B (en) * | 2015-05-05 | 2017-07-25 | 钢研纳克检测技术有限公司 | For echo gain method for independently controlling in the gate of supersonic detector |
KR102540273B1 (en) * | 2020-11-20 | 2023-06-07 | 건국대학교 글로컬산학협력단 | Laser pulse width measurement device using semiconductor two-photon absorption phenomenon |
CN114866184B (en) * | 2022-03-07 | 2024-01-16 | 笔特科技(深圳)有限公司 | Communication and sensing signal integrated fusion method, decomposition method and related device |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4649529A (en) * | 1985-12-02 | 1987-03-10 | Exxon Production Research Co. | Multi-channel fiber optic sensor system |
US4752132A (en) * | 1986-10-24 | 1988-06-21 | Litton Systems, Inc. | Low power control interferometric sensor with wide dynamic range |
US5555086A (en) * | 1991-05-31 | 1996-09-10 | Litton Systems, Inc. | Coherence multiplexed interferometric signal processing system and method |
US5493581A (en) * | 1992-08-14 | 1996-02-20 | Harris Corporation | Digital down converter and method |
US5448058A (en) * | 1993-04-27 | 1995-09-05 | Litton Systems, Inc. | Optical signal detection apparatus and method for preventing polarization signal fading in optical fiber interferometric sensor systems |
GB9605144D0 (en) * | 1996-03-11 | 1996-05-08 | Sensor Dynamics Ltd | Apparatus for sensing one or more parameters |
-
1998
- 1998-02-10 US US09/021,014 patent/US5959294A/en not_active Expired - Lifetime
-
1999
- 1999-02-09 IL IL12845399A patent/IL128453A/en not_active IP Right Cessation
- 1999-02-09 CA CA002259548A patent/CA2259548A1/en not_active Abandoned
- 1999-02-09 NO NO990612A patent/NO990612L/en unknown
- 1999-02-09 AU AU16366/99A patent/AU746168B2/en not_active Ceased
- 1999-02-10 JP JP03348199A patent/JP4091196B2/en not_active Expired - Lifetime
- 1999-02-10 DE DE69916677T patent/DE69916677T2/en not_active Expired - Fee Related
- 1999-02-10 KR KR1019990004622A patent/KR19990072550A/en active Search and Examination
- 1999-02-10 EP EP99300975A patent/EP0936453B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
NO990612D0 (en) | 1999-02-09 |
JP4091196B2 (en) | 2008-05-28 |
KR19990072550A (en) | 1999-09-27 |
DE69916677D1 (en) | 2004-06-03 |
AU1636699A (en) | 1999-08-26 |
US5959294A (en) | 1999-09-28 |
EP0936453A3 (en) | 2000-07-26 |
EP0936453A2 (en) | 1999-08-18 |
EP0936453B1 (en) | 2004-04-28 |
IL128453A0 (en) | 2000-01-31 |
CA2259548A1 (en) | 1999-08-10 |
IL128453A (en) | 2002-03-10 |
JP2000028429A (en) | 2000-01-28 |
DE69916677T2 (en) | 2004-09-23 |
AU746168B2 (en) | 2002-04-18 |
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